Element block pseudo-class :active generated with line-height 1 overflow hidden position static display block padding 20px cursor default box-shadow 1px 1px 1px rgba(0,0,0,0.3) border-radius z-index auto transition font-size 16px box-sizing content-box margin 0px width 160px background height auto float none text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid transform font-weight normal